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Kaolinite/thiourea-formaldehyde composite for efficient U(VI) sorption from commercial phosphoric acid

  • Amir A. Elzoghby , El Sayed A. Haggag EMAIL logo , Osama E. Roshdy , Islam G. Alhindawy and Ahmed M. Masoud
Published/Copyright: November 21, 2022
Radiochimica Acta
From the journal Radiochimica Acta Volume 111 Issue 2

Abstract

Uranium removal from wet phosphoric acid is a vital process for food and environmental security. The incorporation of thiourea-formaldehyde into the kaolinite networks was performed to obtain an effective and acid-resistant sorbent. The prepared composite was applied for U(VI) uptake from crude phosphoric acid. X-ray diffraction, EDX, scanning electron microscopy, and Fourier transform infrared analyses were carried out to explore the properties of the yield composite. The sorption characteristics, i.e., capacity, kinetic, isotherm, and thermodynamic were investigated. The anticipated data declare that the reaction is fast whereas 60 min is sufficient to reach the equilibrium state. The experimental results obeyed to Pseudo second-order kinetic model and Langmuir isotherm model. The maximum sorption capacity was about 5.8 mg g−1. Thermodynamic parameters displayed that the sorption process is endothermic, feasible, and spontaneous. The displayed results demonstrate that the prepared composite could be used as the proper material for producing eco-friendly fertilizers.

Keywords: kaolinite; phosphoric acid; sorption; thiourea-formaldehyde; uranium
Corresponding author: El Sayed A. Haggag, Nuclear Materials Authority, P.O. Box 530, El Maddi, Cairo, Egypt, E-mail:

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None.

  3. Conflict of interest statement: The authors of this manuscript have no competing or conflict of interest with any person or organization.

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Received: 2022-09-11
Accepted: 2022-10-19
Published Online: 2022-11-21
Published in Print: 2023-02-23

© 2022 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Original Papers
  3. Cross sections and calculated yields of some radionuclides of yttrium, strontium and rubidium formed in proton-induced reactions on enriched strontium-86: possibility of production of 85gSr, 83Rb and 82mRb in no-carrier-added form
  4. Kaolinite/thiourea-formaldehyde composite for efficient U(VI) sorption from commercial phosphoric acid
  5. Soya bean derived activated carbon as an efficient adsorbent for capture of valuable heavy metals from waste aqueous solution
  6. Synthesis and characterization of graphene oxide/alginate and application of central composite design in the adsorption of Th(IV) on the nanobiocomposites
  7. Characterization of toothpastes for fluorine and other elements by INAA and ICP-OES
  8. Evaluation of Acrylonitrile Butadiene Styrene (ABS) polymer reinforced with Bi and TiO2 nanopowders for gamma and neutron shielding
  9. Natural and anthropogenic radionuclides in karstic coastal area (Kaštela Bay, Adriatic Sea, Croatia) exposed to anthropogenic activities: distribution, sources, and influencing factors
https://doi.org/10.1515/ract-2022-0091
Keywords for this article
kaolinite; phosphoric acid; sorption; thiourea-formaldehyde; uranium

Articles in the same Issue

  1. Frontmatter
  2. Original Papers
  3. Cross sections and calculated yields of some radionuclides of yttrium, strontium and rubidium formed in proton-induced reactions on enriched strontium-86: possibility of production of 85gSr, 83Rb and 82mRb in no-carrier-added form
  4. Kaolinite/thiourea-formaldehyde composite for efficient U(VI) sorption from commercial phosphoric acid
  5. Soya bean derived activated carbon as an efficient adsorbent for capture of valuable heavy metals from waste aqueous solution
  6. Synthesis and characterization of graphene oxide/alginate and application of central composite design in the adsorption of Th(IV) on the nanobiocomposites
  7. Characterization of toothpastes for fluorine and other elements by INAA and ICP-OES
  8. Evaluation of Acrylonitrile Butadiene Styrene (ABS) polymer reinforced with Bi and TiO2 nanopowders for gamma and neutron shielding
  9. Natural and anthropogenic radionuclides in karstic coastal area (Kaštela Bay, Adriatic Sea, Croatia) exposed to anthropogenic activities: distribution, sources, and influencing factors
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